Button bowl is a kind of steamed meat, called in the area of Chongqing, Sichuan. Practice: first of all, the slices of cut meat in order to lay a good in an earthen bowl without porcelain, six slices towards the length of the direction, the other two slices on the sides. Then put cubes of potatoes or sweet potatoes on top of the meat. After steaming, the bowl is snapped over and looks just like the pork with preserved mustard greens. In Henan, there are dozens of ways to make buckled bowls. Especially Kaifeng, as the Bianjing of the Song Dynasty, has a great variety of ways to make buckwheat bowls, and the flavor is even more wonderful! The most common ones include small crispy pork, mustard pork, bean curd pork, and meatballs. Vegetarian and lotus dishes, tofu, vegetarian meatballs and so on.